Dark Ages (Dark Ages #3)

AFTER THE LIGHTS GO OUT - STRANGE THINGS LURK WITHIN THE DARKNESS! The Earth has been plunged into darkness, and Avengers and X-Men have begun vanishing in the night. They have been taken and twisted by Apocalypse to serve an evil older than the world. A group of heroes will assemble to travel across the dark planet in a desperate attempt to rescue their friends and save a civilization already on its knees.